Inverse optical torques on dielectric nanoparticles in elliptically polarized light waves

Yuzhi Shi; Tongtong Zhu; Ai Qun Liu; Lei-Ming Zhou; Manuel Nieto-Vesperinas; Amir Hassanfiroozi; Jingquan Liu; Din Ping Tsai; Zhenyu Li; Weiqiang Ding; Fan Wang; Hang Li; Qinghua Song; Xiaohao Xu; Baojun Li; Xinbin Cheng; Pin Chieh Wu; Che Ting Chan; Cheng-Wei Qiu

doi:10.1103/PhysRevLett.129.053902

Inverse optical torques on dielectric nanoparticles in elliptically polarized light waves

Yuzhi Shi^*
, Tongtong Zhu
, Ai Qun Liu^*
, Lei-Ming Zhou
, Manuel Nieto-Vesperinas
, Amir Hassanfiroozi
, Jingquan Liu
, Din Ping Tsai
, Zhenyu Li
, Weiqiang Ding
, Fan Wang
, Hang Li
, Qinghua Song
, Xiaohao Xu
, Baojun Li
, Xinbin Cheng
, Pin Chieh Wu
, Che Ting Chan
, Cheng-Wei Qiu^*

^*Corresponding author for this work

Department of Electrical Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

47 Citations (Scopus)

132 Downloads (CityUHK Scholars)

Abstract

Elliptically polarized light waves carry the spin angular momentum (SAM), so they can exert optical torques on nanoparticles. Usually, the rotation follows the same direction as the SAM due to momentum conservation. It is counterintuitive to observe the reversal of optical torque acting on an ordinary dielectric nanoparticle illuminated by an elliptically or circularly polarized light wave. Here, we demonstrate that negative optical torques, which are opposite to the direction of SAM, can ubiquitously emerge when elliptically polarized light waves are impinged on dielectric nanoparticles obliquely. Intriguingly, the rotation can be switched between clockwise and counterclockwise directions by controlling the incident angle of light. Our study suggests a new playground to harness polarization-dependent optical force and torque for advancing optical manipulations.

Original language	English
Article number	053902
Journal	Physical Review Letters
Volume	129
Issue number	5
Online published	28 Jul 2022
DOIs	https://doi.org/10.1103/PhysRevLett.129.053902
Publication status	Published - 29 Jul 2022

Publisher's Copyright Statement

COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: Shi, Y., Zhu, T., Liu, A. Q., Zhou, L-M., Nieto-Vesperinas, M., Hassanfiroozi, A., Liu, J., Tsai, D. P., Li, Z., Ding, W., Wang, F., Li, H., Song, Q., Xu, X., Li, B., Cheng, X., Wu, P. C., Chan, C. T., & Qiu, C-W. (2022). Inverse optical torques on dielectric nanoparticles in elliptically polarized light waves. Physical Review Letters, 129(5), [053902]. https://doi.org/10.1103/PhysRevLett.129.053902. The copyright of this article is owned by American Physical Society.

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AoE(UGC): Meta-optics, Meta-acoustics and Meta-device
TSAI, D.-P. (Principal Investigator / Project Coordinator), CHAN, C. T. (Co-Principal Investigator), LI, J. T. H. (Co-Principal Investigator), SHENG, P. (Co-Principal Investigator), WANG, S. (Co-Principal Investigator), Zhang, S. (Co-Principal Investigator), Zhu, J. (Co-Principal Investigator), PENDRY, J. (Co-Investigator) & Tanaka, T. (Co-Investigator)
1/05/21 → …
Project: Research
SZSTIB-C-HK: 全介質寬色域、高飽和度、高亮度和亞波長分辨率結構色的研究
TSAI, D.-P. (Principal Investigator / Project Coordinator)
1/11/19 → 20/10/23
Project: Research

Cite this

Shi, Y., Zhu, T., Liu, A. Q., Zhou, L.-M., Nieto-Vesperinas, M., Hassanfiroozi, A., Liu, J., Tsai, D. P., Li, Z., Ding, W., Wang, F., Li, H., Song, Q., Xu, X., Li, B., Cheng, X., Wu, P. C., Chan, C. T., & Qiu, C.-W. (2022). Inverse optical torques on dielectric nanoparticles in elliptically polarized light waves. Physical Review Letters, 129(5), Article 053902. https://doi.org/10.1103/PhysRevLett.129.053902

@article{71ca88e6abab42e7828488377d19d6ef,

title = "Inverse optical torques on dielectric nanoparticles in elliptically polarized light waves",

abstract = "Elliptically polarized light waves carry the spin angular momentum (SAM), so they can exert optical torques on nanoparticles. Usually, the rotation follows the same direction as the SAM due to momentum conservation. It is counterintuitive to observe the reversal of optical torque acting on an ordinary dielectric nanoparticle illuminated by an elliptically or circularly polarized light wave. Here, we demonstrate that negative optical torques, which are opposite to the direction of SAM, can ubiquitously emerge when elliptically polarized light waves are impinged on dielectric nanoparticles obliquely. Intriguingly, the rotation can be switched between clockwise and counterclockwise directions by controlling the incident angle of light. Our study suggests a new playground to harness polarization-dependent optical force and torque for advancing optical manipulations.",

author = "Yuzhi Shi and Tongtong Zhu and Liu, \{Ai Qun\} and Lei-Ming Zhou and Manuel Nieto-Vesperinas and Amir Hassanfiroozi and Jingquan Liu and Tsai, \{Din Ping\} and Zhenyu Li and Weiqiang Ding and Fan Wang and Hang Li and Qinghua Song and Xiaohao Xu and Baojun Li and Xinbin Cheng and Wu, \{Pin Chieh\} and Chan, \{Che Ting\} and Cheng-Wei Qiu",

year = "2022",

month = jul,

day = "29",

doi = "10.1103/PhysRevLett.129.053902",

language = "English",

volume = "129",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "5",

}

Shi, Y, Zhu, T, Liu, AQ, Zhou, L-M, Nieto-Vesperinas, M, Hassanfiroozi, A, Liu, J, Tsai, DP, Li, Z, Ding, W, Wang, F, Li, H, Song, Q, Xu, X, Li, B, Cheng, X, Wu, PC, Chan, CT & Qiu, C-W 2022, 'Inverse optical torques on dielectric nanoparticles in elliptically polarized light waves', Physical Review Letters, vol. 129, no. 5, 053902. https://doi.org/10.1103/PhysRevLett.129.053902

TY - JOUR

T1 - Inverse optical torques on dielectric nanoparticles in elliptically polarized light waves

AU - Shi, Yuzhi

AU - Zhu, Tongtong

AU - Liu, Ai Qun

AU - Zhou, Lei-Ming

AU - Nieto-Vesperinas, Manuel

AU - Hassanfiroozi, Amir

AU - Liu, Jingquan

AU - Tsai, Din Ping

AU - Li, Zhenyu

AU - Ding, Weiqiang

AU - Wang, Fan

AU - Li, Hang

AU - Song, Qinghua

AU - Xu, Xiaohao

AU - Li, Baojun

AU - Cheng, Xinbin

AU - Wu, Pin Chieh

AU - Chan, Che Ting

AU - Qiu, Cheng-Wei

PY - 2022/7/29

Y1 - 2022/7/29

N2 - Elliptically polarized light waves carry the spin angular momentum (SAM), so they can exert optical torques on nanoparticles. Usually, the rotation follows the same direction as the SAM due to momentum conservation. It is counterintuitive to observe the reversal of optical torque acting on an ordinary dielectric nanoparticle illuminated by an elliptically or circularly polarized light wave. Here, we demonstrate that negative optical torques, which are opposite to the direction of SAM, can ubiquitously emerge when elliptically polarized light waves are impinged on dielectric nanoparticles obliquely. Intriguingly, the rotation can be switched between clockwise and counterclockwise directions by controlling the incident angle of light. Our study suggests a new playground to harness polarization-dependent optical force and torque for advancing optical manipulations.

AB - Elliptically polarized light waves carry the spin angular momentum (SAM), so they can exert optical torques on nanoparticles. Usually, the rotation follows the same direction as the SAM due to momentum conservation. It is counterintuitive to observe the reversal of optical torque acting on an ordinary dielectric nanoparticle illuminated by an elliptically or circularly polarized light wave. Here, we demonstrate that negative optical torques, which are opposite to the direction of SAM, can ubiquitously emerge when elliptically polarized light waves are impinged on dielectric nanoparticles obliquely. Intriguingly, the rotation can be switched between clockwise and counterclockwise directions by controlling the incident angle of light. Our study suggests a new playground to harness polarization-dependent optical force and torque for advancing optical manipulations.

U2 - 10.1103/PhysRevLett.129.053902

DO - 10.1103/PhysRevLett.129.053902

M3 - RGC 21 - Publication in refereed journal

SN - 0031-9007

VL - 129

JO - Physical Review Letters

JF - Physical Review Letters

IS - 5

M1 - 053902

ER -

Inverse optical torques on dielectric nanoparticles in elliptically polarized light waves

Abstract

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Projects

AoE(UGC): Meta-optics, Meta-acoustics and Meta-device

SZSTIB-C-HK: 全介質寬色域、高飽和度、高亮度和亞波長分辨率結構色的研究

Cite this